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A T1 repeater is an active electronic device used to regenerate the T1 signal over copper facilities. Typically, these T1 repeaters are engineered and installed by local telephone companies at either their serving Central Office, the customer's site, or in a remote hut within their network. They provide automatic T1 span DC power, as well as a bipolar detector, used to measure errors not caused by B8ZS encoding schemes. Typically, T1 repeaters will also have an automatic line build-out function that will compensate for a range of cable lengths and losses. Note: Channel Service Units are generally the interface point at the customer site. Line Build Out options on CSUs are set for customer-side line equalization, not Telco-side. T1 repeaters as retail customer purchases are rare, but in large campus environments where a private network has been installed, repeaters may be required for stable T1 operation. Essentially, a T1 repeater box is a "bi-directional T1 receiver/amplifier" responsible for regenerating the T1 signal in either direction to support extended cable lengths. For example, besides the obvious use by Telephone Companies, repeaters also have applications in campus environments. ABC University was built with each building interconnected with both fiber optic and copper trunking. Since the data center is located in one corner of the campus, and half the buildings are sufficiently far away from the data center that the copper length itself is too far for a T1 to travel, ABC began deploying repeaters on its T1 connections between buildings to avoid failure due to signal attenuation (signal attenuation is a combination of the modulated signal frequency and the physical characteristics of the cable). |
T1 Repeater
